Cthulhu, Great Old One

Flying, Menace
When Cthulhu enters the battlefield, exile all
other creatures.
Whenever an opponent casts a spell, they roll a
D-20. If they roll an odd number, exile the spell instead. If they roll an even number, you lose 1
life as long as you have more than 5 life.
The Old Ones possess unimaginable power...